Second, while focusing on our climate data, we decided to recalculate our 2012 emissions using our newest methodology — the same model we used to calculate our 2013 numbers. The new analysis shows that our carbon footprint actually shrank by 3 percent from 2012 to 2013. This marked the first time we’ve seen a year-over-year decline since we began tracking the numbers in 2009. While we’re excited about this progress, we know our work is far from done.